Question

1. find the sum of the following numbers: -4, 7, -3, -12, 9

Answer 1

1.

$= ( - 3 - 4 - 12) + (7 + 9)$

$= - 19 + 16$

$= - 3$

2.

$= ( - 5 - 8 - 10) + 23$

$= - 23 + 23$

$= 0$